Utility knife



FIG. 1 is an isometric top right side view of a utility knife;

FIG. 2 is a front view of the utility knife of FIG. 1;

FIG. 3 is a rear view of the utility knife of FIG. 1;

FIG. 4 is a right side view of the utility knife of FIG. 1;

FIG. 5 is a left side view of the utility knife of FIG. 1;

FIG. 6 is a top view of the utility knife of FIG. 1;

FIG. 7 is a bottom view of the utility knife of FIG. 1; and,

FIG. 8 is an isometric bottom left side view of the utility knife of FIG. 1.

The subject matter illustrated in broken lines forms no part of the claimed design. 

CLAIM I claim the ornamental design for a utility knife, as shown and described. 